Telescopic umbrella



March 12, 195? A, VLKER TELESCOP-IC UMBRELL Filed July 14, 1953 UnitedStates Patent O TELESCOPIC UMBRELLA Alois Vlker, Leichlingen, Rhineland,Germany, assignor to Rosenkaimer G. m. b. H., Leichlingen, Rhineland,Germany, a firm Application July 14, 1953, Serial No. 367,886

Claims priority, application Germany July 18, 1952 1 Claim. (Cl. 13S-20) The invention relates to a telescopic umbrella having telescopiccover ribs and stick members.

Telescopic umbrellas have to meet the demand that the umbrella has to beas long and wide as possible in the stretched or open position while thesize has to be reduced to a minimum in the telescoped position. It ispossible with such umbrellas in which the inner stick member is adaptedto be telescoped into the outer stick member, to telescope the innerstick member until the outer end of said inner stick member reaches theouter end of the outer stick member, this action being possible as thecrown is recessed to receive said outer end. But it is quite anotherthing if the stick members are arranged in such a manner that the outerstick member is adapted to be telescoped into the inner stick member. lnthis case the inner stick member surrounding the outer stick member isadapted to be displaced only until striking the crown. This means thatshortening of the stick members cannot be effected to such a degree asin the rst case.

The invention provides a way to effect shortening of the stick membersto a minimum even with that arrangement in which the outer stick memberis adapted to be telescoped into the inner stick member. An essentialfeature of the invention is that the crown which is attached to theouter stick member has an inside diameter of such dimension that theinner stick member is adapted to be telescoped into the crown whentelescoping the stick members. Therefore the inner stick member may beas much longer at least than the outer stick member as is required fortelescoping the inner stick member into the crown. The result is anumbrella stick which is as long as possible in the extended position ofthe stick members which permit full shortening of the same cven if theinner stick member has a greater diameter than the outer stick member.

The attachment of such a crown having a greater inside diameter than theupper stick member may be etfected by means of a sleeve whose diametercorresponds to that of the inner stick member. Preferably there is useda crown, the upper end of which is provided with a protruding innercollar made of one piece with the crown which is immediately contactedby the outer stick member. The crown is further provided with an annularaperture for engagement with the inner stick member.

Two embodiments of the object of the invention are shown by way ofexample in the drawing.

Fig. 1 shows a telescopic umbrella having the features according to theinvention.

Figs. 2 and 3 illustrate design and attachment of the crown to the outerstick member as well as the engagement of the inner stick member.

In Fig. 4 is shown the preferred embodiment of the crown according tothe invention.

iatented Mar. 12, 1957 The telescopic umbrella is provided in a mannerknown per se with stick members 1, 2 and also with cover ribs 3, 4adapted to be telescoped. The cover ribs are articulated to the crown 5.The displacement of the cover ribs is etected by means of the slidemember 6 which is connected by means of struts with the inner ends ofthe outer cover ribs 4. The embodiment illustrated by way of exampleshows an umbrella which is selfopening by means of a spring 7 arrangedon the main slide member 6. For this purpose main struts 9 lead from`the spring pressed auxiliary slide member 8 to the cover ribs 4 whileauxiliary struts 10 are connected with the inner slide member 6 and thestruts 9` intermediate the ends of the latter.

The construction of the umbrella is such that the outer stick member 1is adapted to be telescoped into the inner stick member 2. Arresting ofthe stick members in the stretched position is eected by means of ballcatches 11 known per se. According to the invention, crown S is`designed in such a manner that it has formed therein an opening 20 of adiameter which permits the inner stick member 2 to telescope into theannular space 12 nearly to the end of the outer stick member 1. Crown 5is centered with respect to the outer stick member 1 by means of anintermediate sleeve 13 Whose diameter may correspond to that of theinner stick member. A pin 15 serves for attachment of the intermediatesleeve 13 and of the crown 5 to the outer stick member. The pin issuitably riveted at both ends. The reference numeral 14 designates theclosure cap screwed upon the crown.

According to Fig. 4, the upper end of crown 16 is provided with aninwardly and axially directed annular collar 17 which immediatelycontacts the outer stick member 1. The attachment is effected by meansof pin 15. In this embodiment the former parts 5 and 13 are made of onepiece. The crown is advantageously made by die casting. It will be notedthat the annular collar 17 serves to space the outer stick 1 from thewalls of the opening 20, and also serves as a stop for the outer end ofthe inner stick 2 when the umbrella is collapsed.

I claim:

A crown structure for telescopic umbrellas having inner and outertelescopic stick members, including a cylindrical body portion, saidbody having a central opening therein with the outer end of said outerumbrella stick member anchored in said opening and spaced from the wallof said opening, said crown having an annular collar at the outer endthereof extending axially therefrom and projecting inwardly intoengagement with the outer end of said outer stick member, the outer endof said outer stick member terminating substantially at the outer end ofsaid collar, and an anchor pin extending through said collar and saidstick member, the said collar thereby serving as spacing means for theouter stick member, as stop means for the inner stick member, and asanchor means for the outer end of said outer stick member.

References Cited in the ile of this patent UNITED STATES PATENTS1,185,650 Frantz June 6, 1916 2,185,466 Jostes Jan. 2, 1940 2,705,967Zimmermann et al Apr. 12, 1955 FOREIGN PATENTS 732,465 Germany Mar. 3,1943

